hum and hah

• 嗯嗯呃呃；支支吾吾；吞吞吐吐

hum and hah的用法和样例：

例句

1. He just hummed and hahed, and finally refused to commit himself.
   他只是嗯嗯呃呃，最后还是拒绝表态。
2. He hummed and hawed but finally told me the truth.
   他先是支支吾吾，可最后还是跟我说了实话。
3. Speak in a faltering and stammering manner.
   说话支支吾吾，结结巴巴。
4. Don't stand humming and hawing, but speak out.
   有话痛痛快快说出来，不要吞吞吐吐的。
5. The thief made a confession in bits and pieces.
   窃贼吞吞吐吐作了招供。